Evolution

[Karl Larsen]

Robert Spanjaard wrote:
> On Tue, 29 Jul 2008 05:42:24 -0600, Karl Larsen wrote:
>
>   
>>> I can't quite make out if you're asking me to give you statistics on
>>> where you were wrong or not.. But if it'd make you happy send me an
>>> e-mail off-list and I'll do it for you. Not sure it's going to make
>>> your life any better for it.
>>>
>>> Here's one to get you started with regards to an acceptable sample
>>> size. This will at least tell you if your 100 messages is sufficient.
>>>
>>>       
> [...]
>   
>>> http://stattrek.com/Lesson6/SampleSize.aspx?Tutorial=Stat
>>>       
>>     Your building a case for errors to occur due to the sample size and
>> the source of the data. I have never said it was perfect. Yes there are
>> all the problems you point out.
>>
>>     But are you saying that in the general Ubuntu population use of
>> Evolution is greater than the use of Thunderbird? That makes the users
>> of this list weird. And it is not supported by any statistics I have
>> seen.
>>     
>
> Then open your eyes!
>
> #<name> is the package name;
> #<inst> is the number of people who installed this package;
> #<vote> is the number of people who use this package regularly;
> #<old> is the number of people who installed, but don't use this package
> #        regularly;
> #<recent> is the number of people who upgraded this package recently;
>
> #rank name                            inst  vote   old recent
> 443   evolution                      509363 80793 404082 24432
> 587   thunderbird                    141871 45359 91515  4937 
>
> Here is the problem: Your data says 509363 people Installed evolution. This is not accurate. The number comes because every Ubuntu loaded has evolution. 
    Now 141817 it seems loaded Thunderbird. They had to apt-get the 
software. But only 45,359 people are using it. Old is just a subtraction.

    For some reason the data shows 80,793 people are now using 
evolution. This is a great difference with both my 100 email samples of 
this list.

    Now my question remains, how were these numbers computed. In 
particular how was the number of d/l Thunderbird NOT USED counted?

Karl

>>     The other method that gets this result seems to use how often the
>> software is downloaded. This gives Evolution a big edge because it is
>> not downloaded and the number of users are those who didn't download
>> Thunderbird. This has real error built in.
>>     
>
> The popularity contest measures _usage_ too. For the third time, check 
> the _vote_ column.
> And speaking of downloads: note that 72% of Ubuntu's users do _not_ 
> download Thunderbird at all, let alone use it regularly.
>
>   


-- 

	Karl F. Larsen, AKA K5DI
	Linux User
	#450462   http://counter.li.org.
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